Google offers a \"Timeline\" service which allows users to access their phon
According to this question - Current URL To Download KML Data From Google Location History? - the URL format is:
Eg https://www.google.com/maps/timeline/kml?authuser=0&pb=!1m8!1m3!1i2015!2i7!3i1!2m3!1i2015!2i7!3i8 gives 7 days.
Highlighting the parts of the date: pb=!1m8!1m3!1i2015!2i7!3i8!2m3!1i2015!2i7!3i8
Note the month is zero based, so one off normal, 0=Jan, 11=Dec
So, in order to get today's date (2015-09-01) the URL needs to be
https://www.google.com/maps/timeline/kml?authuser=0&pb=!1m8!1m3!1i2015!2i8!3i1!2m3!1i2015!2i8!3i1
i.e.
pb=!1m8!1m3!1iYYYY!2iMM!3iDD!2m3!1iYYYY!2iMM!3iDD
Where MM is a Javascript style zero-based month.
Within the KML, the times are West Coast USA - e.g.
So your requests may need to take that into account.